BISC 320 Lecture Notes - Lecture 22: Snake Venom, Proventriculus, Salivary Gland
19 Oct 2017
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Lecture 22: digestion: digestive systems, contributes to homeostasis by transferring nutrients, water, and electrolytes from the external to the internal environment, motility, secretion, digestion, absorption, storage and elimination of waste, animals need nutrients to maintain homeostasis. The algae produces glucose by photosynthesis, which it shares with the polyps and the polyps provide the algae with protection. It can grow up to 7 feet in length and has a specialized structure called a trophosome. The worm uses large hemoglobin molecules with 144 globin chains to transport. Sulfur to the trophosome for the bacteria to use to generate energy. May include the oral cavity, the pharynx, esophagus, crop, and proventriculus. Accessory organs include the salivary glands: the midgut is involved in digestion and nutrient absorption. Structures include the stomach, gizzard, small intestine, and cecum. Accessory organs include the liver, gallbladder and pancreas: the hindgut may be involved in fermentation and absorption and waste formation, storage, and release.
